Question
One marble costs $a. One marker costs $(a + 15). One colouring book costs $5a.
  1. Harry bought 7 marbles, 3 markers and 1 colouring book. How much did he spend? Simplify your answer in terms of a.
  2. If a = 18, how much did Harry spend altogether?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

One marble costs $a. One marker costs $(a + 15). One colouring book costs $5a.
  1. Harry bought 7 marbles, 3 markers and 1 colouring book. How much did he spend? Simplify your answer in terms of a.
  2. If a = 18, how much did Harry spend altogether?